Home / 104,291.35-143,991.17-61,863.55

Finding the Fourth Proportional to 104,291.35, 143,991.17 and 61,863.55

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Solution

The fourth proportional to 104,291.35, 143,991.17 and 61,863.55 is: 85,412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,291.35 : 143,991.17 = 61,863.55 : x
  2. Step 2: Convert to fraction form
    104,291.35/143,991.17 = 61,863.55/x
  3. Step 3: Cross multiply
    104,291.35x = 143,991.17 × 61,863.55
  4. Step 4: Simplify right side
    104,291.35x = 8,907,804,507.55
  5. Step 5: Solve for x
    x = 8,907,804,507.55/104,291.35
  6. Step 6: Final answer
    x = 85,412.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.